The truth on the matter is negotiations with Terry Nation meant the Dalek stories were never really shipped elsewhere, as Nation was still dreaming of a Dalek brand without being tied to Doctor Who.

Thus, the missing Dalek stories are in all likelihood going to remain missing. There's a decent Fan "re-imagining" of Power of the Daleks on YouTube that even gets Nicholas Briggs to provide the voice for the Daleks. It's very well produced and I highly recommend it.